Live coverage: SpaceX’s next Falcon 9 moved to launch pad for hotfire test

The first 10 spacecraft for a planned U.S. military mega-constellation launched from California Sunday aboard a SpaceX Falcon 9 rocket, setting in place the keystone for a multibillion-dollar network of hundreds of small satellites to improve defenses against hypersonic missiles and other emerging threats.

On its second test flight Tuesday, Astra’s privately-developed small satellite launcher ran out of fuel seconds before reaching the velocity needed to enter orbit but exceeded the company’s expectations with an otherwise-successful climb into space from Kodiak Island, Alaska.

A Russian Soyuz-2.1b booster is standing at the Complex 31 launch pad at the Baikonur Cosmodrome in Kazakhstan for liftoff with 34 OneWeb broadband satellites early Friday, local time.